A Cylinder-shaped Miniature Ultrasonic Motor Based on Pb(Mg1/3Nb2/3)O3-PbTiO3 Single Crystals

被引：11
|
作者：
Luo, Laihui [1 ,2 ]
Zhu, Hua [3 ]
Zhao, Chunsheng [3 ]
Wang, Feifei [1 ,2 ]
Luo, Haosu [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Shanghai 201800, Peoples R China
[3] Nanjing Univ Aeronaut & Astronaut, Res Ctr Ultrason Motor, Nanjing 210016, Peoples R China
来源：
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2008年 / 19卷 / 12期
基金：
中国国家自然科学基金;
关键词：
crystal; ultrasonic motor; first-order bending mode; transducer;
D O I：
10.1177/1045389X07088062
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A miniature ultrasonic motor using first-order bending vibration of a cylinder with two free-free ends has been developed in this investigation. It is based on Pb(Mg1/3Nb2/3) O-3-PbTiO3 crystal with high piezoelectric response. The stator of the motor is optimized by finite element method. The stator is 4.8 mm in diameter and 18 mm in length. The nonlinear characteristics of the stator are discussed in this study and a fitted formula is given. The resonant frequency and mechanical quality factor of the stator decrease with voltage. The main performance of the motor is measured. The rotation speed reaches 450 r/m, with a maximal torque of 0.6 mNm. The motor can run with low voltage.
引用
收藏
页码：1457 / 1461
页数：5
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